In January, Indian authorities

The deal would allow "British businesses to score big on football's biggest stage", Lammy said.Algeria, which backs the Western Saharan independence movement, said it "regrets" Lammy's announcement.

Algeria said Morocco's autonomy plan was now 18 years old and had never been submitted to the Sahrawis as a basis for negotiation.Western Sahara is a mineral-rich former Spanish colony that has been fought over for five decades in what is one of Africa's longest frozen conflicts.Morocco holds much of the 100,000 sq miles (260,000 sq km) of territory but part is controlled by the Polisario Front, an armed group seeking independence for the local Sahrawi people.

The African Union recognises Western Sahara's independence but in recent years, various countries have backed Morocco's position, including the United States, Spain, France, Germany and the Netherlands.British diplomats said the UK had decided to follow suit but only in return for business deals and a new commitment from Morocco to support the principle of self-determination, publish a new version of its autonomy plan and restart negotiations.

A procurement agreement between the two countries will "create a unique foundation for UK companies to access public tenders in Morocco", the UK Foreign Office said, pointing to deals in the health sector as well as contracts to upgrade Casablanca's airport.

The joint communique reaffirmed both sides' respect for "the non-use of force for the settlement of conflicts and their support for the principle of respect for self-determination".Jordan Libowitz - from the organisation Citizens for Responsibility and Ethics in Washington - said any use of the plane by Trump after leaving office would cross a line: "Reagan's Air Force One ended up in his presidential library, but there's a difference there. The plane was decommissioned, Reagan never flew on it again, and it sits inside as a museum piece."

The US Justice Department has reportedly drafted a memo explaining why it thinks accepting the jet would be permissible, although this has not been made public.When the White House Press Secretary, Karoline Leavitt was asked about the legality of the deal, she said: "The legal details of that are still being worked out, but of course, any donation to this government is always done in full compliance with the law."

President Trump is on a four-day trip to Saudi Arabia, Qatar and UAE, hoping to drum up investment for the US.His visit follows a series of business deals announced by the Trump Organization, which is run by the president's sons, Eric and Donald Jr.